You have chosen 'Commentary on the Metaphysics' by Avicenna (Abu Ibn Sina), 'On the Nature of Truth and Falsehood' by Bertrand Russell and 'The Approach to Metaphysics' by Charles Sanders Peirce
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Theory, or select a subheading: |
| A. | Speculations on Nature | |
| B. | Natural Kinds | |
| C. | Causation | |
| D. | Laws of Nature |